answersLogoWhite

0

They study mercury with high powered satellites from outer space. Of course if they got to close to it where it is so close to the sun it would fry in an instant. The closest planet they have been to the sun is venus and that satellite burnt up from venus's hot atmosphere. Anything closer than that would vaporize. The only planet or considered planetoid we have not taken a look at is Pluto where it is so far away and it is so small.

User Avatar

Wiki User

13y ago

What else can I help you with?